Ball-cock.



0. H. JONES.

BALL 000K.

APPLIGATION HLBD .mn 14, 1910.

' Patented Jan. 10,1911.

Fig, z

WITNESSES:

' T RNEY.v

yOWEN' H. JONES, OF

TENT @FLEECE -IARTEGRD, CONNECTCUT.

BALL-COCK.

Specification of Letters Patent.

, 1910. Serial No. 566,724.

esimo.

Application led June 14 Patented Jan. 19, 1911.

To all whom 'it may concern:

Be it known that 1, OWEN H. JONES, a. citizen of the United States, and resident of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful improvement-s in Eall- Cocks, of which the following is a full, clear, and exact specification.

r1`his invention relates to automaticallyoperated valves adapted for use in flushingtanks, and more particularly to that class thereof in which a ball float is employed to close said valve when the water in the tank has reached a certain level; while on the other hand, the descent of the float will open the valve.

The invention has for one of its objects the provision of a simple device of this character in which all cramping action on the valve stem will be entirely avoided.

The invention has also for its object the provision of an improved mechanism for operating the valve stem, so that the leverage brought to bear upon the valve stem may be such as to overcome any water pressure which the supply may have.

The invention has been clearly illustrated in the accompanying` drawings in which similar characters denote similar parts, and in which- Figure 1 is a side view of a valve embodying my invention, the casing being partly broken away to disclose the interior, and Fig. 2 is a central vertical section thereof.

Briefly stated the present invention resides in the construction of the mechanism whereby the valve stem is operated, this mechanism comprising a cam-plate which is preferably connected with the valve stem but is operated by the rise-and-fall movement of the float.

Referring to the drawings, t-he numeral 10 denotes the lower casing having a valve seat 11 and screw-threaded into the upper casing 12 which contains and guides the valve proper. rllhe latter has a head 13 adapted to: close the aperture of the valve seat 11, and the valve stem 14 is guided for reciprocation in a boss or hub 15 carried by the casing 12. rEhe upper end of this hub is bifurcated to form a pair of ears 16 and 17 adapted to receive between them a cam-plate 18, the lower end of which is rounded, as shown at 19, to fit into a similarly-curved recess 20 provided in the upper end of the valve stem 14. 1t will thus be seen that the camplate 18 can have a rocking movement in the recess 20, and, 1n order to connect the camplate and valve stem 1n a permanent manextension 14 which carries a pin 21 centrally-disposed relatively to the recess E20, so that, as a matter of fact, the pin 21 serves only for the purpose of pulling the valve stem upward when the cam-plate 18 is rocked by the descent of the float.

1n the present instance, has a rise-and-fall movement, as controlled by a cam-slot Q2 in engagement with a roller 23 which is journaled on a pin Qa in the ears 16 and 17 above mentioned, the pin 24 being disposed directly over and in straight alinement with the axis of the valve stem, so that when the cam-plate 18 is swung, a straight-line resistance will be interposed between the pin 2a and the end of the stem. f

The cam-slot 22 has a wall 25 over which the roller 23, travels to depress the valve 13 when the fioat-lever rises, the curvature of said wall being in the present instance such that the first half-movement of the lioat will almost close the valve; while the last halfmovementv of the float lever is utilized in fully closing said valve under hiO'hly-increased leverage. @n the other hand, the opposite wall 26 of the slot 22 becomes effective in positively raising the valve from its seat.

Many changes may be made in the construction and assemblage of the component elements without departing from the gist or spirit of the invention.

1. The combination with a casing having a valve seat, also having a bifurcated eX- tension, and a valve movable in said casing, of a cam-plate disposed in and guided by said bifurcated extension and provided with a lower rounded end portion connected with the stem of said valve, a stationary pin having a roller `iournaled thereon, disposed in said extension and in engagement with said cam-plate, and means for operating said cam-plate.

2. The combination with a casing having a valve seat, also having a bifurcated extension, and a reciprocatory valve having al valve stem provided with a curved recess in its end mounted in said casing, of an actuator for said valve comprising a cam-plate having a rounded end portion, means for ner, the stem 1st has at one side thereof an stationary t-he cam-plate 18 pivoting said rounded portion in the recess of the Valve stem and in pin having a roller j ournaled thereon, Carried by Said bifurcated extension of the casing and disposed in alinenient with the longitudinal axis of said valve stein, and in engagement With the cani falce of said plate whereby the latter is inoved bodily with the Valve stein7 und means for oscillating said Cain-plate.

OVEN H. JONES.

Witnesses:

CI-IAsAF. SGHMELZ, J. V. BIGSBY. 

